Spring hinge



FIG. 1 is a perspective view of the spring hinge showing my new design;

FIG. 2 is an enlarged perspective view of element A thereof as shown in FIG. 1;

FIG. 3 is an enlarged perspective view of element B, which is a mirror image of element A, thereof as shown in FIG. 1;

FIG. 4 is a top view of element A;

FIG. 5 is a side view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a side view of element B;

FIG. 8 is a perspective view thereof with element B shown in a folded position;

FIG. 9 is an enlarged perspective view of element C thereof as shown in FIG. 8;

FIG. 10 is an enlarged perspective view of element D thereof as shown in FIG. 8;

FIG. 11 is a perspective view thereof with element A shown in a disassembled state;

FIG. 12 is an enlarged perspective view of element E as shown in FIG. 11;

FIG. 13 is a perspective view thereof with element A shown in a disassembled state; and,

FIG. 14 is an enlarged perspective view of element F as shown in FIG. 13. 

CLAIM I claim the ornamental design for a spring hinge, as shown and described. 